Road grader



A D. c. HINDs ROAD GRADER Fiied Jan; 50, 1924y Oct. 22, 1929.

4 Sheets-Sheet l Oct. 22, 1929 D. C. HINDS ROAD GRADER Filed Jan. 50, 1924 4 Sheets-Sheet 2 Ocgzz, 1929, D. c. HINDS 1,732,892

ROAD GRADER.

Filed Jan. 3o, 1924 4 Smets-sheet "3" im Z2, 1929., D. C, HUND@ 1,732,892

Rom) GRADER Filed; Jan, 50, 19245 4 Sheets-Sheet 4 Patented Oct. 229 1939 UNITED STATES PATENT ori-*ics DANIEL C. HINDS, OF SIOUX FALLS, SOUTH DAKOTA, ASSIGNOR TO RYAN MANUFAC- TURING CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS ROAD GRADER Application filed January 30, 1924. Serial No. 689,416.

My invention relates to road graders, and has to do more particularly with machines of this character adapted for road grading and working upon the ditches and banks alongside the road, an object being to provide an improved machine of this character.

There are a number of features to my 1nvention, among which is the provision o f a machine having an improved-leveling or tllting main frame; another feature is the provision of such a frame in combination with tilting wheels, whereby certain advantages hereinafter more particularly pointed out are secured; another feature is a transversely shiftable mould board frame further amplified by the provision of vertical adjustment to the draw-.bar ofthe mould board frame with side tilting of the mould board circle, giving a four-point adjustment or pitch to the mould board; another feature is the combination of the tilting wheels, leveling frame and transversely shiftable mould board frame, whereby certain advantages in operation are secured; another feature is the combination of the tilting wheel, levelin frame, transversely shiftable mould board frame and four-point mould board adjustment, whereby certain advantages in operation are secured; another feature is the provision of a longitudinally adjustable mould board; another feature is the improved mechanism for tilting the wheels; and a further feature is the provision of a rotary disk at the end of the mould board and in alignment therewith, which givesgcertain advantages in operation.

Another feature of my in vention is the provision of a main frame construction in which the mould board mechanism is supported between the outer frame members to permit adjustment of the mould board independent of the frame and wheels.

There are other features in construction7 combination and resultant operation, some of which will be hereinafter referred to.

F or a better understanding of my invention, reference is to be had to the accompanying drawings, in which- Fig. l is a side elevation of the road grader of my invention with parts thereof in section to more clearly bring out the detailed construction;

Fig. la is a detail view of the mould board draw-bar suspension for vertical adjustment thereof;

Fig. 2 is a top plan view of Fig. 1;

Fig. 3 is a rear view of the rear wheels with part of the mechanism broken away and showing more in detail the rear wheel tilting mechanism and main frame leveling or tilting mechanism;

Fig. 4 is a front view in section alonothe line 4-4 of F ig. l of the front wheels anda tilting mechanism thereof;

Fig 5 is a sectional view along the line 5-5 of Fig. 4, showing more in detail the rack and pinion adjustment for tilting the front Wheels;

Fig. 6 is a top plan view of the mould board circle frame and mechanism for rotary adjustment thereof; and

Fig. 7 is a detail view in section along the line 7-7 of Fig. 1, showing more particularly the vertical and transverse adjusting mechanism ofthe mould board circle.

Referring now more in detail to the preferred form of mv invention as illustrated herein, I provide a main frame comprising side members 10-11 extending across the rear by section 12 and bent downwardl as indicated in Fig. 1 with a rear pivot siiaft 13 to permit tilting or leveling of the frame. The front end of the frame is connected by cross pieces lei-l5 pivotally connected to the head 16 bv pivot pins 17-18. The main frame is rounded upwardly toward the center so as to provide suicient clearance for proper adjustment of the mould board and suspending apparatus, and said frame is also preferably widened throughout its center sufliciently to permit suitable transverse adjustmentof the mould board and suspending apparatus relative to the wheels with the transverse adjustment of the main frame relative to the wheels.

The mould board is preferably suspended. between the side rails of the main frame and has rotarv adjustment, vertical adjustment, and a universal tilting adjustment of the supporting frame. rlhe mould board itself coner 25 of the supporting circle, which member 25 is slidably rotatablv on circle member 27, which latter member-is adjustablyA Suspended for movement in various directions. The mould'board 19 is thus longitudinally adjustable in its supporting frame, and may be held at any desired position by the set screws 26.

Mould board 19 may be supported upon the opposite side of brackets 23 which are concaved at 23at so that the board may be carried substantially parallel to and upon the left side of the grader. This permits cleaning out ditches alongside the road and scraping the refuse toward the fence and thus away from the road.

In order to secure a more effective and easier operation of the mould board under certain conditions, I provide a disk wheel 96 acting as anextension of the mould board, and the face of which is in pivotal alignment with the face of the mould board. This disk is rotatably supported on the end of an arm 97 pivotally connected at 98 to the mould board bracket 21 so that the disk may be raised or adjusted into various operating positions, or raised above the mould board out of operating position. A suitable bracing is supplied for holding the disk in its.

adjustment and against operating strain, and to this end a rod 99 extends into the tube 100 pivoted at' 101. The parts 99 and 100 hold the disk 96 in adjustment by means of a pin 102 adapted to be inserted in the proper hole of a series extending along through the bar 99. Among other advantages this disk may be adjusted in advance of the mould board when operating upon heavy banks or cutting heavy roads, the disk relieving the strain otherwise placed upon the end of the mould board, because it acts to cut and throw up the dirt as it advances, the rotary movement of the disk reducing the power otherwise required.

In order to secure transverse tilting, and raising and lowering of the circle frame, I suspend it by links 28-2-9 connected to the arms 30-31. These arms 30-31 are extensions of shafts 32-33, respectively, controlled through worm gearing by the hand operated adjusting wheels 34-35 positioned preferably for operation from the drivers station at the rear of the machine.

Thus by -the operation of the wheelsy 34 and 35 the mould board circle frame may be raised and lowered in horizontal adjustment, or may be tilted transversely in one directionl or the other as is found necessary.

e I provide a further adjustment-of the mould board suspension apparatus so as to secure a universal adjustment of the same, and to this end provide an additional vertical adjustment of the circle so as to secure a tilting thereof on a transverse axis, preferably the lower suspending points of the links 28 and 29 where they connect to the frame at the eyes 3637. This tilting is preferably accomplished by an intermediately pivoted draw-bar which connects the mould board suspension with the head 16 and thus directly to the king bolt and king block. This draw-bar extends from the universal connection 38 back of the head 16 through the forked link 39 and pivotally connected at 40 to the bars 41-42 which are fastened to the stationary circle 27. In order to secure this tilting of the circle the draw-bar is connected at its intermediate pivotal point 40 through link 43 with an arm 44 carried by shaft 45. This shaft is connected through worm gear mechanism 46 and shaft 47 to the rear of the machine, where it is operated by the hand wheel 48. Thus as the hand wheel 48 is rotated to the right or lelt, arm 44 is raised and lowered to tilt the mould board circle frame.

It will thus be seen that the mould board circle frame may be adjusted through the hand Wheels 34, .35 and 48 in any direction from a horizontal plane.

Now as to the rotary or circular adjustment of the mould board, any suitable mechanism ma be provided, but for this purpose I use a c ain 49 secured at its'ends to the periphery of the rotatable circle 25 and passlng over a sprocket wheel 50 connected through worm gearing 51, shaft52 and sliding connection 53 to the hand wheel 54 at the rear of the machine. Thus as the hand wheel 54 is rotated to the right or left, the mould board is rotatably adjusted to the desired angle.

As previously stated, a feature of my invention is the transverse adjustment of the mould board suspension whereby, among other things, a wider range of adjustment of the mould board is secured and also a more rigid frame and wheel construction supplied. Furthermore by this transverse adjustment I secure many advantages in, and new methods of, operation of the mould board.

To this end I provide transverse adjusting mechanism including a block 55 slidably carried on the cross bars 56-57 extending from one side rail of the frame to the other. This block 55 has a rearwardly extending arm 58 having a screw 59 passing therethrough and adapted to be rotated through the gearing 60 and hand operated crank 61. Thus as thls crank 61 is rotated to the right 0r to the left the screw 59 is rotated in one direction or the other to slide the block 55 alo the ways 5.6-57. This block 55 is connected to the circle suspension by means of rear of the machine.

There are a number of advantages in this feature of my invention when used either alone or in combination with other elements. For instance, it is desirable at many times to maintain the frame on a level although the wheels may be setting on the incline of the road, or one set of wheels on the road and the other in the ditch or a 'furrow along the road. Also the main frame may thus be tilted to a greater degree than where the ordinary frame is used, thus permitting an adjustment of the mould board to operate in eXtreme positions, such as for cutting down high banks alongside the road.

Now as to this tilting or leveling mechanism, I preferably support the main frame pivotally at the rear end by the shaft 13 which eXtends through the block 63 of the rear wheel frame members 64h65. This shaft 13 carries a worm gear 66 at its rear end, operated by a worm 67 on the shaft of the hand crank 68. Thus as the crank 68 is turned in one direction or the other, the main frame is tilted or leveled as desired.

In order to tiltably adjust the wheels of the grader I have provided improved hand operated mechanism whereby the wheels may be more readily adjusted and eliminating the hard work heretofore necessary to ef.

feet such adjustment.

In the rear wheel tilting mechanism shown more in detail in Fig. 3, I provide right and left arms 69 pivotally supported at 70 between the rear frame extensions 64-65 and connected through links 71 to the slidable rack 72. The teeth on this rack are engaged by the teeth of pinion 73 carried on a shaft with a worm gear 74 adapted to be rotated by a worm 75 carried on the shaft of crank 76. Thus as the crank 76 is rotated in one direction or the other, the rack 72 is moved to the right or left and the rear wheels tilted to the desired angle.

In the front wheel tilting mechanism, shown more in detail in Figs. 4 and 5, the

Awheels are supported on right and left aXle members 77 connected by links 78 to the rack 79 slidably supported in the front frame 80. This frame turns under the head 16 of the main frame so that the grader may be drawn in' the usual manner. In order to operate the wheel inclining rack 79 I preferably employ the operating shaft as the king bolt or shaft 81 on which the frame 80 turns. This shaft 81 has a pinion 82 at-its lower 'end in mesh with the teeth on rack 79, and has its upper end connected through gearing 83 and shaft 84 to the rear end of the machine where it is operated by the hand wheel 85. Thus as the hand wheel 85 is rotated to the right or to the left, the Vfront wheels are inclined accordingly.

In order to effect adjustment of the tongue 86 for an offset hitch, if desired, this tongue is pivotally attached to the steering frame 87 at 88. The tongue 86 carries a pinion 87 in mesh with the teeth of sector 89 of the steering frame, said pinion 87 being rotated by the worm gear mechanism 90. This latter mechanism is controlled from the operators platform at the rear of the machine and is connected through a universal joint 91, sliding shafts 92, universal joint 93 and shaft 94 to the hand wheel 95. Thus the operator may rotate the hand wheel 95 to the right or left to adjust the tongue 86, the universal joints 91 and 93 with the sliding connection 92 permitting adjustment of the tongue and operation of the steering frame without interference.

What I claim as new and desire to secure by United States Letters Patent is:

l. In a road grader, front and rear wheel frames, a main frame pivotally supported to its front and rear ends by said wheel frames, a mold board circle frame, means for trans versely ltilting the main frame and means suspending said circle frame operable to adjust said circle frame tiltably, bodily vertically and transversely of the main frame, said suspending and adjusting means including gear mechanism for all of said adjustments.

2. In a road grader, front and rear wheel frames, a main frame comprising side rails and front and rear end sections each pivotally supported in a corresponding wheel frame, said side rails of the main frame extending forwardly from the rear end and then bending outwardly to widen the frame andpthen inwardly-to a comparatively narrow neck to the front end section, a mold board circleframe positioned beneath the main frame, said main frame being wider at its widened portion than the circle frame, and'means for suspending said circle frame from the main frame, said latter means comprising only links extending downwardly inside the rails of the main frame with means carried on the main frame between the outside rails for operating the links to adjust the circle frame. v

3. In a road grader, a mold board sup porting frame, an intermedia-tely pivoted draw-bar connecting the mold board frame and king block of the grader, and means for raising and lowering the draw-bar'at the intermediate pivot to adjust the frame, said means including a link connected to the intermediate pivot and suspended from an operating lever above for adjusting the link to adjust mold board frame.

4. In a road grader, front and rear Wheel .necessarily disturbing its adjustment on the main frame.

5. In a road grader, the combination of front and rear -Wheel frames With tiltable Wheels and tilting mechanism therefor. a mold board, and a main frame carrying said mold board transversely tiltably supported' in said frames and independently operable. tilting mechanism therefor, whereby said Wheels may be tilted relative to and independent of their frames and to a verticalplane and the main frame independently tilted relative 'to thedwheel frames and the inclination of the roa 6. In a road grader, front and rear wheel frames, a transversely pivotally tiltable main frame carried by the Wheel frames having pivotal supports transversely stationary relative to the Wheel frames, and a mold board supporting frame transversely shiftably carried by the main frame.

7. In a road grader, front and rear Wheel frames, a transversely pivotally tiltable main frame carried by the Wheel frames having pivotal supports transversely stationary relative to the Wheel frames, a mold board supporting fram-e, and means suspending the `mold board frame from the main frame op- "-erable to transversely shift the mold board frame relative to the main frame and universally adjust it relative1 to a horizontal plane.

8. In a road grader, the combination of front and rear wheel frames, a leveling main frame carried thereby, a transversely shiftable mold board frame carried by the main frame, and means for tilting the Wheels with respect to the same, leveling the main frame-and shiftin the mold board frame -each independent o the,other,`so as to secure the same, leveling the main frame and shifting the mold board frame each independent of the other, so as to secure various adjustments of the mold board frame relative -to the tread of the wheels.

10. In a road grader, front and rear Wheel frames, a transversely tiltable main .framer pivotally supported in the Wheel frames, a mold board frame transversely adjustably carried by the mainframe, a mold board rotatably adjustably carried by the mold board frame, whereby said mold board may be adjusted to substantially'parallel to the line of c travel of the grader to one side of the grader and the frame tilted to raise the mold board to operate upon high banks.

11. In a road grader, front and rear Wheel frames, a main frame transversely tiltably supported by the Wheel frames, a mold board circle frame rotatably supported by the main frame, a mold board, means for supporting the mold board on the mold board frame and means for reversing the mold board face relative to the axis of rotation ofthe circle frame.

12. In a road grader, front and rear Wheel frames, a main frame transversely tiltably supported'bythe Wheel frames, a mold board carrying circle frame, and means for supporting the circle frame by the mainframe operable to elfect bodily transverse, vertical,

rotary, and tilting, adjustment of the circle 'frame each independent of the other, so as` to secure various adjustments of the mold board frame relative to the tread of the wheels.

14. In a road grader, the combination of front and .rear-Wheel frames, a leveling main frame carried thereby, a transversely sliiftable and independently vertically adjustable mold board carried by the main frame, and means for tilting the rear Wheels with respect to the rear wheel frame, leveling the main frame and shifting the mold board-frame each independent of the other, so as to secure various adjustments of the mold board frame relative to the tread of the Wheels.

15. In a road grader, front and rear wheel frames, road wheels rotatably supported by said frames, a main frame, a mold board supporting frame, and means for independently transversely tiltably adjusting said main and mold board frames relative to the Wheel frames. l

16. In a road grader, front and rear wheel frames, a main trame transversely tiltably supported by the Wheel frames, a mold board ilo till

supporting frame independently adjustably carried by the main frame, a draw bar for the mold board frame, and means for vertically adjusting the draw bar to raise and lower the same in any angular tilt of the main frame. f

17. In a road grader, front wheel frames, tiltable rear wheel frames, a leveling main ,frame transversely tiltably supported by the front and rear wheel frames, and means whereby the main and tiltable wheel frames may be adjusted to level or tilt the main frame and vertically or tiltably dispose the rear wheel frames, according to the inclination of the road.

I8. In a road grader, tiltable front wheel frames, tiltable rear wheel frames, a leveling main frame transversely tiltably supported by the front and rear wheel frames, and means whereby the main and tiltable wheel frames may be adjusted to level or tilt the main frame and vertically or tiltably dispose the front and rear wheel frames, according to the inclination of the road.

19. In a road grader, front and rear wheel trames, a main frame transversely tiltably supported by the wheel frames, a mold board frame independently adj ustably supported by the main trame, and a mold board longitudinally adjustably supported by the mold board frame for movement beyond the tread of the wheels on either side with the main frame tilted or leveled.

20. In a road grader, front and rear wheel frames, a main frame transversely tiltably supported by the wheel frames, a mold board supporting frame independently adjustably carried by the main frame, a mold board, and means for reversibly supporting the mold board by said supporting frame to permit adjusting the4 mold board toward either side of the grader angular to the trend of the rjoai and with the main frame tilted or leve e 21. In a road grader, iront and rear wheel trames, a main iframe transversely tiltably supported by the wheel frames. a mold board supporting trame, and means for transversely shiftably suspending the mold board frame from the main frame.

22. In a road grader, a front wheel frame,

tiltable rear wheel frames, a main frame sup-y ported by the front and rear wheel frames, a mold board i'rame rotatably supported by the main frame, and alconcave operating face mold board reversibly supported by the mold board :trame whereby the concave lace of the mold board may be positioned toward or away from the axis of rotation ol the mold board trame.

23. In a road grader, a main frame, a mold board iframe, a pair of crank arms from which said mold board frame is sus- J pended, and means whereby said arms are operable through a complete circle for adjusting the mold board frame.

24. Ina road grader, a main frame, a mol'cl board frame, a pair of crank arms from which said mold board frame is suspended, and means whereby said arms are operable through a half circle on one side 'of a horizontal plane through their axes of rotation for adjusting the mold board frame.

25. In a road grader', a main frame having longitudinal side rails, a mold board frame, a pair ofcrank arms from which said mold board frame is suspended by links positioned between the side rails of the main frame, and means for mounting said crank arms on the main frame whereby said arms are operable through a complete circle for adjusting the mold board frame.

26. In a road grader, a main iframe having longitudinal side rails, a mold board frame, a pair of crank arms from which said mold board frame is suspended by links positioned between the side rails of the main frame, and means for mounting said crank arms on the main frame whereby said arms are operable through a half circle on one side of a horizontal planevthrough axis of rotation for adjusting the mold board.

27. In a road grader, a main iframe,ja mold board frame, a pair of crank arms transversely rotatable on the main :trame and from which said mold board frame is suspended, and means whereby said arms are rotatable through a complete circle to corresponding or different radial positions for adjusting the mold board frame.

28. In a road grader, a main frame, a mold board frame, a pair of crank arms from which said mold board frame is sus-l pended, means whereby said arms are op erable through a complete circle for adjusting the mold board frame, and means for transversely shifting the mold board with the crank arms in any angular position..

29. In a road grader, a transversely 'tiltable main frame, a mold board frame, a pair of crank arms on the main frame 'from which the mold' board is suspended, and means whereby said arms are operable through at least half a circle for adjusting the mold board with the main frame in any of its tiltable positions. n

30. In a road grader, front and rear wheel frames, a main frame transversely tiltably supported by the wheel frames, an adjustable mold board supporting trame, and operator controlled adjusting means :tor theV mold board carried by and movable bodily with the main frame.

l3l. In a road grader, front and rear wheel frames, a main trame transversely tiltably supported by the wheel frames, an adjust llll llti

able mold board supporting frame, operator controlled adjusting means for the mold 'board carried by and movable bodily with the main frame, and means supported by the rear Wheel frame for transversely tilt- 'mg the main frame.

In Witness whereof, I hereunto subscribe my name this 26 day of December, 1923.

DANIEL C. HINDS. 

